CN103188711A - Method and terminal of optimizing frequency spectrum resource using - Google Patents
Method and terminal of optimizing frequency spectrum resource usingDownload PDFInfo
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- CN103188711A CN103188711ACN2011104594518ACN201110459451ACN103188711ACN 103188711 ACN103188711 ACN 103188711ACN 2011104594518 ACN2011104594518 ACN 2011104594518ACN 201110459451 ACN201110459451 ACN 201110459451ACN 103188711 ACN103188711 ACN 103188711A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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Abstract
Description
Technical Field
The present invention relates to spectrum resource utilization techniques in the field of wireless communications, and in particular, to a method and a terminal for optimizing spectrum resource usage.
Background
The development of wireless networks has shown a trend toward high speed, wide bandwidth, isomerization, and ubiquitous. Meanwhile, wireless networks also face serious challenges, which mainly include: spectrum resource shortage and waste. On the one hand, the demand for wireless services is increasing, such as: the proliferation of mobile communication users, the expansion of applications in the aspect of public safety and the continuous increase of television broadcast channels make wireless spectrum resources become very important resources in the society at present. The spectrum resource is a scarce resource, is very limited, cannot be redistributed if occupied, and is not distributed if the occupied spectrum resource is distributed, so that the challenge of shortage of the spectrum resource is presented; on the other hand, although some spectrum resources are already allocated, due to technical or traffic limitations, the owners of these allocated spectrum resources cannot make efficient use of the spectrum. The survey shows that at a given moment, the frequency spectrum resources used by people only account for 2% -6% of all available frequency spectrum resources, so that the limited frequency spectrum resources are greatly wasted. Due to the fact that the spectrum cognitive ability is not achieved, the problems of scarcity and waste of spectrum resources cannot be solved in a cooperative communication network, a heterogeneous network, a wireless sensor network and the like.
In summary, no technical scheme for solving the problems of scarcity and waste of frequency spectrum resources exists at present.
Disclosure of Invention
In view of the above, the present invention provides a method and a terminal for optimizing the use of spectrum resources, which can effectively improve the utilization of spectrum resources.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides a method for optimizing the use of frequency spectrum resources, which comprises the following steps:
the terminal periodically monitors the performance of the frequency spectrum section within an acceptable range of the terminal;
when the authorized spectrum of the terminal is occupied, the terminal determines a switched target unauthorized spectrum from unauthorized spectrums in the spectrum segment within the acceptable range of the terminal according to the performance of the currently monitored spectrum segment within the acceptable range of the terminal, and switches to the determined target unauthorized spectrum.
In the foregoing solution, the periodically monitoring performance of the spectrum segment within the self acceptable range includes:
the terminal periodically monitors the performance of the frequency spectrum section within the self acceptable range through information interaction with the network side; or, the terminal periodically monitors the performance of the spectrum section within the self acceptable range on the multidimensional space of time domain, frequency domain and space domain.
In the above scheme, the terminal periodically monitors the performance of the spectrum segment within the acceptable range of the terminal through information interaction with the network side, and the monitoring is as follows:
the terminal obtains the performance of the spectrum section within the self-acceptable range through the periodic information interaction with the network side.
In the foregoing scheme, the determining, by the terminal, a target unlicensed spectrum to be switched from unlicensed spectrums in spectrum segments within an acceptable range of the terminal according to the currently monitored performance of the spectrum segments within the acceptable range of the terminal includes:
the terminal performs priority ranking on the availability of all monitored frequency spectrums according to the performance of the currently monitored frequency spectrum section within the acceptable range of the terminal;
and selecting the unlicensed spectrum with low priority and free space as a target unlicensed spectrum for handover.
In the foregoing solution, after switching to the determined target unlicensed spectrum, the method further includes:
and the terminal detects the authorized terminal corresponding to the target unauthorized spectrum in real time, and when the authorized terminal corresponding to the target unauthorized spectrum is determined to be accessed, the terminal determines a switched new target unauthorized spectrum from the unauthorized spectrum in the spectrum segment within the acceptable range of the terminal according to the performance of the currently monitored spectrum segment within the acceptable range of the terminal, and switches to the determined new target unauthorized spectrum.
In the above scheme, the determining that the authorized terminal corresponding to the target unlicensed spectrum needs to be accessed includes:
and the terminal acquires an access request sent to the network side by the authorized terminal corresponding to the target unauthorized frequency spectrum.
In the foregoing solution, the determining, by the terminal, a new target unlicensed spectrum to be switched from unlicensed spectrums in spectrum segments within an acceptable range of the terminal according to the currently monitored performance of the spectrum segment within the acceptable range of the terminal includes:
the terminal performs priority ranking on the availability of all monitored frequency spectrums according to the performance of the currently monitored frequency spectrum section within the acceptable range of the terminal;
and selecting the unlicensed spectrum except the target unlicensed spectrum with low priority and free as a new target unlicensed spectrum for handover.
In the above scheme, the target unlicensed spectrum is a free unlicensed spectrum with the best performance in a spectrum segment within an acceptable range of the terminal itself;
correspondingly, the new target unlicensed spectrum is a vacant unlicensed spectrum with second best performance in the spectrum segment within the acceptable range of the terminal itself.
The invention also provides a terminal for optimizing the use of the frequency spectrum resources, which comprises the following components: the monitoring module and the switching module; wherein,
the monitoring module is used for periodically monitoring the performance of the frequency spectrum section within the self acceptable range and triggering the switching module when the authorized frequency spectrum of the terminal is occupied;
and the switching module is used for determining a switched target unauthorized frequency spectrum from the unauthorized frequency spectrum in the frequency spectrum section within the self-acceptable range according to the performance of the currently monitored frequency spectrum section within the self-acceptable range after receiving the triggering information of the monitoring module, and switching to the determined target unauthorized frequency spectrum.
In the above scheme, the monitoring module is further configured to detect an authorized terminal corresponding to the target unauthorized spectrum in real time after switching to the determined target unauthorized spectrum, and trigger the switching module when determining that the authorized terminal corresponding to the target unauthorized spectrum needs to be accessed;
the switching module is further configured to determine a new target unlicensed spectrum to be switched from unlicensed spectrums in the spectrum segments within the self-acceptable range according to the performance of the currently monitored spectrum segments within the self-acceptable range after receiving the trigger information of the monitoring module, and switch to the determined new target unlicensed spectrum.
According to the method and the terminal for optimizing the use of the frequency spectrum resources, the terminal periodically monitors the performance of the frequency spectrum section within an acceptable range; when the authorized spectrum of the terminal is occupied, the terminal determines the target unauthorized spectrum to be switched from the unauthorized spectrum in the spectrum segment within the acceptable range of the terminal according to the performance of the currently monitored spectrum segment within the acceptable range of the terminal and switches to the determined target unauthorized spectrum, so that the utilization rate of spectrum resources can be effectively improved.
In addition, after the target unauthorized spectrum is switched to the determined target unauthorized spectrum, the terminal detects the authorized terminal corresponding to the target unauthorized spectrum in real time, when the authorized terminal corresponding to the target unauthorized spectrum is determined to be accessed, the terminal determines the switched new target unauthorized spectrum from the unauthorized spectrum in the spectrum segment within the acceptable range of the terminal according to the performance of the currently monitored spectrum segment within the acceptable range of the terminal, and switches to the determined new target unauthorized spectrum, so that the terminal can quickly return the occupied unauthorized spectrum, and the utilization rate of spectrum resources is further improved.
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FIG. 1 is a schematic flow chart of a method for optimizing spectrum resource usage according to the present invention;
FIG. 2 is a flowchart illustrating a method for optimizing spectrum resource usage according to an embodiment;
fig. 3 is a schematic diagram of a terminal structure for optimizing spectrum resource usage according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The concept of Cognitive Radio (CR) has been proposed in recent years. Wherein, the CR refers to: the wireless terminal has enough intelligence or cognitive ability, and the wireless terminal adjusts the transmission parameters of the wireless terminal by monitoring, analyzing, learning, reasoning and planning the history and the current conditions of the surrounding wireless environment and utilizing the corresponding results to finish wireless transmission by using the most suitable wireless resources. In other words, by sensing the frequency spectrum environment characteristics such as surrounding frequency, time, space and the like, and adopting an understanding method to reason the environment, the position, the channel, the network, the protocol, the user and the internal structure of the equipment, the wireless terminal is changed from a blind executor with a pre-defined protocol to an intelligent agent in the radio field, so that the transmission parameters can be adjusted in real time, the wireless rule of the system is adapted to the input radio excitation change, and the communication system achieves high adaptability to the wireless environment and high efficiency of spectrum sharing. Here, the wireless rules of the system include: a set of radio frequency bandwidths, air interfaces, associated protocols, and spatial, temporal modes, etc., suitable for reasonable use of the radio spectrum are provided.
The appearance of the cognitive wireless network provides a new thought, method and way for the efficient utilization of frequency spectrum resources. Based on a series of assumptions about CR, the method for optimizing spectrum resource usage of the present invention, as shown in fig. 1, includes the following steps:
step 100: the terminal periodically monitors the performance of the spectrum segment within the self acceptable range, and then executes thestep 101;
here, the portion of the spectrum within the self-acceptable range refers to: a frequency spectrum section within an acceptable range of a radio frequency device of the terminal; the radio frequency device may be a filter. In order to implement the method for optimizing the use of spectrum resources of the present invention, it is necessary that the terminal can switch between different spectrums, that is: the spectrum spans are large, and therefore, a communication device, particularly a filter, is required to have a relatively wide spectrum processing range, and therefore, a wideband filter is required to be used. In practical applications, the wideband filter refers to a filter with a frequency bandwidth greater than 20M.
Specifically, the terminal periodically monitors the performance of the spectrum segment within the self acceptable range through information interaction with the network side; or, the terminal periodically monitors the performance of the spectrum section within the self acceptable range on the multidimensional space of time domain, frequency domain and space domain. The terminal periodically monitors the performance of the spectrum segment within the acceptable range of the terminal through information interaction with the network side, and specifically may be: the terminal obtains the performance of the spectrum section within the self-acceptable range through the periodic information interaction with the network side. The specific implementation of the terminal periodically monitoring the performance of the frequency spectrum section within the self acceptable range in the multidimensional space of time domain, frequency domain and space domain includes:
in the frequency domain, the terminal can know the transmitting signal-to-noise ratio and the receiving signal-to-noise ratio, the performance of the frequency spectrum section within the self acceptable range can be known by comparing the magnitude of the receiving signal-to-noise ratio on each frequency spectrum, and in the spatial domain, the terminal can obtain the performance of other frequency spectrum sections except the self authorized frequency spectrum according to the transmitting signals and the receiving signals which are provided for other frequency spectrum sections except the self authorized frequency spectrum by probing through a plurality of antennas. Here, the existing terminal can implement the above-described functions by performing corresponding software, and/or hardware modifications. The specific processing procedure for improving the software and/or hardware of the terminal is a conventional technical means for those skilled in the art, and is not described herein again.
The performance of the portion of spectrum includes: the signal-to-noise ratio of the spectrum section, the data traffic of the channel corresponding to the spectrum, and the like.
The length of the period can be set according to the requirement.
Step 101: when the authorized spectrum of the terminal is occupied, the terminal determines a switched target unauthorized spectrum from unauthorized spectrums in the spectrum segment within the acceptable range of the terminal according to the performance of the currently monitored spectrum segment within the acceptable range of the terminal, and switches to the determined target unauthorized spectrum.
Here, since the terminal periodically monitors the performance of the spectrum segment within the acceptable range of the terminal including the licensed spectrum, it can know whether the licensed spectrum of the terminal is occupied.
The method for determining the target unauthorized spectrum for switching by the terminal from the unauthorized spectrum in the spectrum segment within the self-acceptable range according to the performance of the currently monitored spectrum segment within the self-acceptable range includes:
the terminal performs priority ranking on the availability of all monitored frequency spectrums according to the performance of the currently monitored frequency spectrum section within the acceptable range of the terminal;
and selecting the unlicensed spectrum with low priority and free space as a target unlicensed spectrum for handover.
In practical application, the performance of the monitored spectrum segment may be, for example: the signal-to-noise ratio, or the data traffic of a channel corresponding to a spectrum, etc., divides the spectrum availability into three levels, namely: high, medium, low; wherein, the high-grade meaning means: the spectrum is always or most of the time in use, i.e.: the use probability of the frequency spectrum obtained by monitoring is more than 50%, and the medium-level meaning is that: the spectrum is used occasionally, i.e.: the monitored spectrum has a use probability lower than 50%, and the low level means that: the frequency spectrum is a substantially unused frequency band, such as: the use probability of the monitored spectrum is lower than 10%, namely the availability level of the spectrum is considered to be a low level. Here, the specific process of determining whether the monitored spectrum is used according to the signal-to-noise ratio or the data traffic of the channel corresponding to the spectrum is the prior art, and is not described herein again. When the availability of the unlicensed spectrum is in a medium-low level and is idle currently, the terminal can determine whether to switch according to the service requirement. Specifically, if the terminal needs to occupy the unlicensed spectrum for a long time, the handover can be performed only at the time of the low level, and if the terminal only occupies the unlicensed spectrum for a short time, the handover can be performed at the time of the medium and low levels. And when the switching to the unlicensed spectrum is determined to be possible, switching to the unlicensed spectrum. The specific switching process is as follows: the terminal can acquire idle channel information according to the monitored performance of the frequency spectrum section and randomly select an idle channel for access. Here, the terminal may directly determine which channels are idle channels according to the monitored performance of the spectrum segment. The more detailed process of switching to the determined target unlicensed spectrum may employ existing techniques.
The purpose of selecting the unlicensed spectrum with low priority and idle is: the method and the device prevent the situation that when the authorized terminal corresponding to the unlicensed spectrum suddenly appears, the terminal needs to be switched to a standby channel to carry out communication connection again, and therefore communication quality is affected.
After switching to the determined target unlicensed spectrum, the method may further include:
and the terminal detects the authorized terminal corresponding to the target unauthorized spectrum in real time, and when the authorized terminal corresponding to the target unauthorized spectrum is determined to be accessed, the terminal determines a switched new target unauthorized spectrum from the unauthorized spectrum in the spectrum segment within the acceptable range of the terminal according to the performance of the currently monitored spectrum segment within the acceptable range of the terminal, and switches to the determined new target unauthorized spectrum.
The determining that the authorized terminal corresponding to the target unlicensed spectrum needs to be accessed specifically includes:
and the terminal acquires an access request sent to the network side by the authorized terminal corresponding to the target unauthorized frequency spectrum. Here, after the handover to the target unlicensed spectrum, the terminal communicates with the network side over the target unlicensed spectrum. When the network side receives the access request of the authorized terminal corresponding to the target unauthorized spectrum, the network side immediately sends switching request information to the terminal according to the priority information stored by the network side, and the terminal obtains the access request sent to the network side by the authorized terminal corresponding to the target unauthorized spectrum.
The method for determining the new target unauthorized spectrum to be switched by the terminal from the unauthorized spectrum in the spectrum segment within the self-acceptable range according to the performance of the currently monitored spectrum segment within the self-acceptable range includes the following steps:
the terminal performs priority ranking on the availability of all monitored frequency spectrums according to the performance of the currently monitored frequency spectrum section within the acceptable range of the terminal;
and selecting the unlicensed spectrum except the target unlicensed spectrum with low priority and free as a new target unlicensed spectrum for handover.
Here, in practical applications, when the unlicensed spectrum to which the terminal first switches is the unlicensed spectrum with the lowest priority selected from the spectrum segment, that is: when the selected unauthorized spectrum is the optimal spectrum, the suboptimal spectrum is selected as the new target authorized spectrum during the second switching, and the like.
When switching to the determined new target licensed spectrum, the method may further include:
and the network side recovers the original related parameters of the target unauthorized frequency spectrum and establishes connection with an authorized terminal corresponding to the target unauthorized frequency spectrum.
Wherein, the original related parameters are: parameters related to the authorized terminal corresponding to the target unlicensed spectrum, where the original related parameters include: utility functions, and the like.
The present invention will be described in further detail with reference to examples.
The first embodiment is as follows:
the application scenario of this embodiment is as follows: the terminal periodically monitors the performance of the frequency spectrum section within the self acceptable range based on the wireless environment map information provided by the upper wireless management layer.
The method for optimizing the use of the spectrum resources by the terminal of the embodiment, as shown in fig. 2, includes the following steps:
step 200: after receiving a specific service request of a user, the terminal periodically makes a request to an upper wireless management layer to acquire environment perception information;
here, in this embodiment, the specific service request is: a video teleconferencing request.
The context awareness information includes: wireless environment map information, frequency spectrum environment information, signal-to-noise ratio of a frequency spectrum segment within an acceptable range of the terminal and the like; wherein the spectrum environment information includes: frequency, time, and space of the surroundings.
Step 201: the terminal periodically monitors the signal-to-noise ratio of the frequency spectrum section within an acceptable range of the terminal by extracting the acquired environment perception information;
step 202: when the authorized spectrum of the terminal is occupied, the terminal prioritizes the availability of the monitored spectrum according to the currently monitored signal-to-noise ratio of the spectrum section within the acceptable range of the terminal;
step 203: and the terminal determines the optimal unlicensed spectrum and video network which can be used according to the scheduled priority sequence and switches to the optimal unlicensed spectrum.
Specifically, it is assumed that the radio environment map information currently transmitted by the upper radio management layer indicates: the terminal is within the coverage of a wireless local area network and a television channel 9 is available. The terminal detects the tv channel 9 and the adjacent channels, and verifies the radio environment map information from the upper radio management layer. If the tv channel 9 is confirmed to be applicable, the terminal sends a switching request to the network side, and after receiving the switching request, the network side determines a proper utility function for the terminal, so as to satisfy the requirements of the service type and the service quality of the terminal, for example: data transmission rate, delay, bit error rate, and power consumption, among others. After that the terminal switches to television channel 9. Here, the process of the terminal detecting the tv channel 9 and the adjacent channel and verifying the radio environment map information from the upper radio management layer is as follows: the process of determining the best unlicensed spectrum and video network that can be used. The process of determining the appropriate utility function for the terminal may employ existing techniques.
Example two:
the application scenario of this embodiment is as follows: the authorized frequency spectrum of the terminal is occupied and is switched to the unauthorized frequency spectrum. The process of the terminal for the secondary switching comprises the following steps: and after the terminal accesses the idle channel and starts communication, detecting the authorized terminal corresponding to the unauthorized frequency spectrum, and continuously detecting the authorized terminal corresponding to the unauthorized frequency spectrum. When detecting that an authorized terminal corresponding to the unlicensed spectrum needs to access, for example: and when receiving an access request of an authorized terminal corresponding to the unauthorized frequency spectrum, the terminal starts emergency switching. Here, the procedure of the emergency handover includes: firstly, the terminal stores the current environmental parameters, selects a suitable new target unauthorized frequency spectrum according to the scheduled priority sequence of the availability of all the monitored frequency spectrums, and provides a switching request to the network side, after the network side receives the switching request, the terminal switches to the selected new target unauthorized frequency spectrum after determining that the new target unauthorized frequency spectrum can be switched, and reestablishes communication connection. Meanwhile, the network side recovers the utility function matched with the authorized terminal, and meets the requirements of the service type and the service quality of the authorized terminal, such as: data transmission rate, delay, bit error rate, power consumption, etc., and establishes a communication connection with the authorized terminal through a connection establishment procedure. Here, the environmental parameters include: ambient frequency, time and space etc. spectral environment parameters. The new target unlicensed spectrum is a suboptimal unlicensed spectrum compared to the performance of the target unlicensed spectrum of the first handover. The network side stores the utility function matched with the authorization terminal in advance, so that the utility function matched with the authorization terminal can be quickly recovered when the authorization terminal needs to access.
It can be seen from the above description that, in the method for optimizing spectrum resource usage provided by the present invention, first, the wireless terminal realizes accurate wireless spectrum detection capability, and can perform multidimensional spectrum monitoring within its receivable range, thereby finding out a usable spectrum. Secondly, the terminal is free from the unlicensed spectrum resource, so that the terminal has the capability of rapidly discovering the main terminal and constantly detecting the activity state of the main terminal in the working process, thereby ensuring that the interference to the main terminal is avoided. Here, the master terminal means: and the authorized terminal corresponds to the unauthorized frequency spectrum occupied by the terminal. Thirdly, when an authorized terminal corresponding to the unauthorized spectrum occupied by the terminal needs to access, the terminal realizes the capability of immediately returning the spectrum resource of the authorized terminal.
In order to implement the foregoing method, the present invention further provides a terminal for optimizing spectrum resource usage, as shown in fig. 3, where the terminal includes: amonitoring module 31 and aswitching module 32; wherein,
themonitoring module 31 is configured to periodically monitor performance of a spectrum segment within an acceptable range of the monitoring module, and trigger theswitching module 32 when authorized spectra of the terminal are all occupied;
and theswitching module 32 is configured to, after receiving the trigger information of themonitoring module 31, determine a target unlicensed spectrum to be switched from unlicensed spectrums in the spectrum segment within the self-acceptable range according to the currently monitored performance of the spectrum segment within the self-acceptable range, and switch to the determined target unlicensed spectrum.
Among them, it should be noted that: the monitoringmodule 31 may be specifically a radio frequency module, a baseband module capable of implementing a monitoring function, or a logic module formed by software.
Themonitoring module 31 is further configured to detect an authorized terminal corresponding to the target unauthorized spectrum in real time after switching to the determined target unauthorized spectrum, and trigger theswitching module 32 when determining that the authorized terminal corresponding to the target unauthorized spectrum needs to be accessed;
theswitching module 32 is further configured to determine a new target unlicensed spectrum to be switched from unlicensed spectrums in the spectrum segment within the self-acceptable range according to the currently monitored performance of the spectrum segment within the self-acceptable range after receiving the trigger information of themonitoring module 31, and switch to the determined new target unlicensed spectrum.
Here, it should be noted that: the specific processing procedures of the monitoring module and the switching module in the terminal of the present invention have been described in detail above, and are not described again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (10)
1. A method for optimizing spectrum resource usage, the method comprising:
the terminal periodically monitors the performance of the frequency spectrum section within an acceptable range of the terminal;
when the authorized spectrum of the terminal is occupied, the terminal determines a switched target unauthorized spectrum from unauthorized spectrums in the spectrum segment within the acceptable range of the terminal according to the performance of the currently monitored spectrum segment within the acceptable range of the terminal, and switches to the determined target unauthorized spectrum.
2. The method of claim 1, wherein the periodically monitoring performance of the portion of spectrum within an acceptable range of the periodically monitoring is:
the terminal periodically monitors the performance of the frequency spectrum section within the self acceptable range through information interaction with the network side; or, the terminal periodically monitors the performance of the spectrum section within the self acceptable range on the multidimensional space of time domain, frequency domain and space domain.
3. The method according to claim 2, wherein the terminal periodically monitors the performance of the spectrum segment within its acceptable range through information interaction with the network side, and the method is as follows:
the terminal obtains the performance of the spectrum section within the self-acceptable range through the periodic information interaction with the network side.
4. The method according to claim 1, 2 or 3, wherein the determining, by the terminal, the target unlicensed spectrum for handover from unlicensed spectrums in the spectrum segment within the self-acceptable range according to the currently monitored performance of the spectrum segment within the self-acceptable range includes:
the terminal performs priority ranking on the availability of all monitored frequency spectrums according to the performance of the currently monitored frequency spectrum section within the acceptable range of the terminal;
and selecting the unlicensed spectrum with low priority and free space as a target unlicensed spectrum for handover.
5. The method of claim 1, 2 or 3, wherein after switching to the determined target unlicensed spectrum, the method further comprises:
and the terminal detects the authorized terminal corresponding to the target unauthorized spectrum in real time, and when the authorized terminal corresponding to the target unauthorized spectrum is determined to be accessed, the terminal determines a switched new target unauthorized spectrum from the unauthorized spectrum in the spectrum segment within the acceptable range of the terminal according to the performance of the currently monitored spectrum segment within the acceptable range of the terminal, and switches to the determined new target unauthorized spectrum.
6. The method according to claim 5, wherein the determining that the authorized terminal corresponding to the target unlicensed spectrum needs to access is:
and the terminal acquires an access request sent to the network side by the authorized terminal corresponding to the target unauthorized frequency spectrum.
7. The method of claim 5, wherein the determining, by the terminal, a new target unlicensed spectrum for handover from unlicensed spectrums in the spectrum segment within the self-acceptable range according to the currently monitored performance of the spectrum segment within the self-acceptable range comprises:
the terminal performs priority ranking on the availability of all monitored frequency spectrums according to the performance of the currently monitored frequency spectrum section within the acceptable range of the terminal;
and selecting the unlicensed spectrum except the target unlicensed spectrum with low priority and free as a new target unlicensed spectrum for handover.
8. The method according to claim 5, wherein the target unlicensed spectrum is a free unlicensed spectrum with the best performance in a spectrum segment within an acceptable range of the terminal itself;
correspondingly, the new target unlicensed spectrum is a vacant unlicensed spectrum with second best performance in the spectrum segment within the acceptable range of the terminal itself.
9. A terminal for optimizing spectrum resource usage, the terminal comprising: the monitoring module and the switching module; wherein,
the monitoring module is used for periodically monitoring the performance of the frequency spectrum section within the self acceptable range and triggering the switching module when the authorized frequency spectrum of the terminal is occupied;
and the switching module is used for determining a switched target unauthorized frequency spectrum from the unauthorized frequency spectrum in the frequency spectrum section within the self-acceptable range according to the performance of the currently monitored frequency spectrum section within the self-acceptable range after receiving the triggering information of the monitoring module, and switching to the determined target unauthorized frequency spectrum.
10. The terminal according to claim 9, wherein the monitoring module is further configured to detect an authorized terminal corresponding to the target unlicensed spectrum in real time after switching to the determined target unlicensed spectrum, and trigger the switching module when determining that the authorized terminal corresponding to the target unlicensed spectrum needs to be accessed;
the switching module is further configured to determine a new target unlicensed spectrum to be switched from unlicensed spectrums in the spectrum segments within the self-acceptable range according to the performance of the currently monitored spectrum segments within the self-acceptable range after receiving the trigger information of the monitoring module, and switch to the determined new target unlicensed spectrum.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104594518ACN103188711A (en) | 2011-12-31 | 2011-12-31 | Method and terminal of optimizing frequency spectrum resource using |
| PCT/CN2012/075733WO2013097398A1 (en) | 2011-12-31 | 2012-05-18 | Method and terminal for optimizing use of spectrum resources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011104594518ACN103188711A (en) | 2011-12-31 | 2011-12-31 | Method and terminal of optimizing frequency spectrum resource using |
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| CN103188711Atrue CN103188711A (en) | 2013-07-03 |
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| CN2011104594518APendingCN103188711A (en) | 2011-12-31 | 2011-12-31 | Method and terminal of optimizing frequency spectrum resource using |
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| WO2015113199A1 (en)* | 2014-01-28 | 2015-08-06 | 华为技术有限公司 | Method and apparatus for controlling discontinuous reception |
| WO2015131376A1 (en)* | 2014-03-06 | 2015-09-11 | 华为技术有限公司 | Base station, terminal and switching method |
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